#include<bits/stdc++.h>
 
using namespace std;
 
string word[6000];
char s[103000];
 
int main()
{
	map<string,long> dictionary;
	int i,n,len,total_words;
	i=0;
 
	scanf("%[^EOF]",s);
	len=strlen(s);
 
	n=0;
	for(i=0;i<len;i++)
	{
		s[i]=tolower(s[i]);
 
		if(s[i]>='a' && s[i]<='z')
		{
			word[n]=word[n]+s[i];
		}
		if(!(s[i]>='a' && s[i]<='z'))
		{
			n++;
		}
	}
	total_words=n;
 
	sort(word,word+total_words);
 
	for(i=0;i<total_words;i++)
	{
		if(dictionary[word[i]]==0)
			{
				dictionary[word[i]]++;
				if(word[i]=="") continue;
				cout<<word[i]<<endl;
			}
	}
	return 0;
}

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Andy's first Dictionary is ready


Adventures in Disneyland
Two blondes were going to Disneyland when they came to a fork in the
road. The sign read: "Disneyland Left."
So they went home.